SiC, daha etkili enerji tasarrufu ve daha uzun s\u00fcr\u00fc\u015f mesafeleri sa\u011flarken y\u00fcksek voltajlara dayanma kabiliyeti nedeniyle elektrikli ara\u00e7 batarya invert\u00f6rlerinde kullanmak i\u00e7in ideal bir malzemedir.<\/p>\n
Silisyum karb\u00fcr (SiC) meteoritlerde, korindon yataklar\u0131nda ve kimberlitte az miktarda do\u011fal olarak bulunmas\u0131na ra\u011fmen, g\u00fcn\u00fcm\u00fczde sat\u0131lan SiC'nin \u00e7o\u011fu sentetik olarak \u00fcretilmektedir ve benzersiz fiziksel \u00f6zelliklere sahip sert ve k\u0131r\u0131lgan bir malzemedir.<\/p>\n
Genellikle SiC olarak k\u0131salt\u0131lan silisyum karb\u00fcr, 19. y\u00fczy\u0131l\u0131n sonlar\u0131ndan bu yana a\u015f\u0131nd\u0131r\u0131c\u0131 olarak ve f\u0131r\u0131nlar i\u00e7in refrakter astarlar veya end\u00fcstriyel f\u0131r\u0131nlar i\u00e7in \u0131s\u0131tma elemanlar\u0131, pompalar ve roket motorlar\u0131nda a\u015f\u0131nmaya dayan\u0131kl\u0131 par\u00e7alar ve \u0131\u015f\u0131k yayan diyotlar (LED) i\u00e7in yar\u0131 iletken substrat gibi \u00e7e\u015fitli end\u00fcstriyel ama\u00e7lar i\u00e7in seri olarak \u00fcretilen son derece sert kristalli bir silikon ve karbon bile\u015fi\u011fidir.<\/p>\n
SiC a\u015f\u0131r\u0131 sertli\u011fi (Mohs \u00f6l\u00e7e\u011finde 9), a\u015f\u0131nma direnci, kimyasal inertli\u011fi ve termal iletkenli\u011fi ile bilinir - bu \u00f6zellikler onu refrakterler gibi y\u00fcksek s\u0131cakl\u0131k uygulamalar\u0131 i\u00e7in uygun hale getirir. Ayr\u0131ca, SiC'nin mukavemeti y\u00fcksek s\u0131cakl\u0131klarda da devam eder ve bu da onu m\u00fckemmel bir malzeme se\u00e7imi haline getirir.<\/p>\n
Edward Goodrich Acheson ilk kez 1891 y\u0131l\u0131nda kil (bir al\u00fcminyum silikat) ve toz kok (karbon) kar\u0131\u015f\u0131m\u0131n\u0131 \u0131s\u0131tarak ba\u015far\u0131l\u0131 bir \u015fekilde silisyum karb\u00fcr \u00fcretti. K\u00f6m\u00fcr ve elmas\u0131n bir kar\u0131\u015f\u0131m\u0131 olan bu malzemeye karborundum ad\u0131n\u0131 verdi. Daha sonra Henri Moissan, karbonu s\u0131v\u0131 silikon i\u00e7inde \u00e7\u00f6zerek ya da kalsiyum karb\u00fcr ve silikay\u0131 eriterek ba\u015far\u0131l\u0131 bir \u015fekilde silisyum karb\u00fcr olu\u015fturdu.<\/p>\n
G\u00fcn\u00fcm\u00fczde d\u00fcnya \u00e7ap\u0131nda sat\u0131lan silisyum karb\u00fcr\u00fcn \u00e7o\u011fu sentetiktir ve ye\u015fil bloklar\u0131n Barmac \u00f6\u011f\u00fct\u00fcc\u00fcde veya Raymond de\u011firmeninde kalsine edilmesi ve ard\u0131ndan eleme kullan\u0131larak ultra ince toz haline getirilmesi yoluyla \u00fcretilmektedir. Siyah silisyum karb\u00fcr, hassas lepleme, parlatma ve kaymaz uygulamalar\u0131; tel testere kuvars\u0131; kaplamal\u0131 ve ba\u011fl\u0131 a\u015f\u0131nd\u0131r\u0131c\u0131 \u00fcr\u00fcnleri kar\u015f\u0131lamak i\u00e7in titiz spesifikasyonlara g\u00f6re i\u015flenir.<\/p>\n
Silisyum karb\u00fcr (SiC) insano\u011flunun bildi\u011fi en sert, en g\u00fc\u00e7l\u00fc ve en kullan\u0131\u015fl\u0131 kimyasal bile\u015fiklerden biridir. Son derece nadir formlarda mozanit de\u011ferli ta\u015flar olarak do\u011fal olarak olu\u015fan SiC, 1893'ten beri m\u00fckemmel mukavemet, tokluk ve termal iletkenlik \u00f6zelliklerine sahip bir a\u015f\u0131nd\u0131r\u0131c\u0131 ve end\u00fcstriyel malzeme olarak kullan\u0131lmak \u00fczere toz ve kristal formunda seri olarak \u00fcretilmektedir.<\/p>\n
SiC, d\u00f6rt atomlu koordinasyon tetrahedralar\u0131 halinde d\u00fczenlenmi\u015f yak\u0131n paketlenmi\u015f Si ve C atomlar\u0131ndan olu\u015fur ve ola\u011fan\u00fcst\u00fc sert ve g\u00fc\u00e7l\u00fc bir malzeme olu\u015fturur. Hidroflorik asit ve asit flor\u00fcrler hari\u00e7 \u00e7o\u011fu organik aside, inorganik aside ve erimi\u015f tuzlara dayan\u0131kl\u0131d\u0131r; benzersiz tetrahedral yap\u0131s\u0131 ayr\u0131ca y\u00fcksek s\u0131cakl\u0131k uygulamalar\u0131nda kullan\u0131m i\u00e7in ola\u011fan\u00fcst\u00fc termal \u015fok direnci sa\u011flar.<\/p>\n
Saf silisyum karb\u00fcr, oda s\u0131cakl\u0131\u011f\u0131nda son derece y\u00fcksek bir termal iletkenli\u011fe sahiptir - kristal kafesinde safs\u0131zl\u0131k veya yap\u0131sal kusur bulunmamas\u0131 nedeniyle yakla\u015f\u0131k 490 Wm-1 K-1 - polikristalin SiC seramikler ise tanelerin rastgele y\u00f6nlendirilmesi, tane s\u0131n\u0131rlar\u0131nda daha d\u00fc\u015f\u00fck iletkenli\u011fe sahip ikincil fazlar veya kafes safs\u0131zl\u0131klar\u0131 nedeniyle \u00f6nemli \u00f6l\u00e7\u00fcde daha d\u00fc\u015f\u00fck iletkenlikler sergiler.<\/p>\n
Foundry Service, a\u015f\u0131nd\u0131r\u0131c\u0131 kumlama, kaymaz kaplamalar, kaplamal\u0131 a\u015f\u0131nd\u0131r\u0131c\u0131lar, seramik ta\u015flama ta\u015flar\u0131 ve refrakterler gibi \u00e7e\u015fitli uygulamalar\u0131 kar\u015f\u0131lamak i\u00e7in \u00e7ok \u00e7e\u015fitli boyutlarda ve kimyasal bile\u015fimlerde hem g\u00f6zenekli hem de tamamen yo\u011funla\u015ft\u0131r\u0131lm\u0131\u015f b-SiC sa\u011flar. Sunulan t\u00fcm malzemelerin ilgili standartlar\u0131 kar\u015f\u0131lad\u0131\u011f\u0131 ba\u011f\u0131ms\u0131z olarak onaylanm\u0131\u015ft\u0131r.<\/p>\n
Silisyum karb\u00fcr tozu, m\u00fckemmel \u0131s\u0131 iletkenli\u011fi ve d\u00fc\u015f\u00fck genle\u015fme katsay\u0131s\u0131 ile y\u00fcksek derecede refrakter olmas\u0131n\u0131n yan\u0131 s\u0131ra ola\u011fan\u00fcst\u00fc a\u015f\u0131nma direnci ve korozyon korumas\u0131 sunar - bu nitelikler onu end\u00fcstriyel kullan\u0131m i\u00e7in m\u00fckemmel k\u0131lar. Silisyum karb\u00fcr\u00fcn a\u00e7\u0131k gri tonu, elmas\u0131n sertli\u011fine ve yo\u011funlu\u011funa benzer ancak \u00e7atlama veya \u00e7izilme olas\u0131l\u0131\u011f\u0131 daha d\u00fc\u015f\u00fckt\u00fcr, bu da onu end\u00fcstriyel malzeme olarak kullan\u0131m i\u00e7in ideal hale getirir.<\/p>\n
Grafenin elektriksel \u00f6zellikleri aras\u0131nda yar\u0131 iletken \u00f6zellikleri ve bile\u015fimler aras\u0131nda yedi b\u00fcy\u00fckl\u00fck s\u0131ras\u0131na kadar geni\u015f diren\u00e7 aral\u0131\u011f\u0131 bulunmaktad\u0131r. Suda ve alkolde \u00e7\u00f6z\u00fcnmez, ancak elmastan daha y\u00fcksek bir erime noktas\u0131na sahiptir. Ayr\u0131ca, grafenin asit, a\u015f\u0131nma ve korozyona kar\u015f\u0131 y\u00fcksek diren\u00e7li \u00f6zellikleri onu iyi korur; ancak, y\u00fcksek s\u0131cakl\u0131klarda baz\u0131 hidroflorik ve nitrik asitler h\u0131zla korozyona u\u011framas\u0131na neden olur.<\/p>\n
Reaksiyona ba\u011fl\u0131 silisyum karb\u00fcr, belirli oksitleyici asitler (nitrik ve hidroflorik gibi) haricinde, kimyasal uygulamalarda tipik olarak korozyona kar\u015f\u0131 olduk\u00e7a diren\u00e7lidir. Bu diren\u00e7, m\u00fckemmel a\u015f\u0131nma direncinden kaynaklanmaktad\u0131r.<\/p>\n
Reaksiyona ba\u011fl\u0131 silisyum karb\u00fcr, bir bulama\u00e7 olu\u015fturmak i\u00e7in plastikle\u015ftirici ve su ile kar\u0131\u015ft\u0131r\u0131larak, daha sonra haddeleme, filtre pres veya hidrostatik bas\u0131n\u00e7 yoluyla d\u00f6k\u00fclerek veya ekstr\u00fcde edilerek kal\u0131plara kolayca \u015fekillendirilebilir. Bu kal\u0131plama i\u015flemi, aksi takdirde korozyona diren\u00e7li \u00f6zelliklerini etkileyecek kalsiyum m\u00fcdahalesi olmadan ger\u00e7ekle\u015fmelidir; bu g\u00f6revi yerine getirmek i\u00e7in, kal\u0131p malzemesi olarak geleneksel kum bazl\u0131 olanlar yerine genellikle al\u00e7\u0131 kal\u0131plar kullan\u0131l\u0131r.<\/p>\n
Silisyum karb\u00fcr Mohs \u00f6l\u00e7e\u011finde 9.1'dir ve sertli\u011fi onu \u00e7ok sert malzemeleri veya granit gibi sert y\u00fczeyleri kesmek i\u00e7in ideal k\u0131lar. Ayr\u0131ca, h\u0131zl\u0131 kesme h\u0131z\u0131 ve a\u015f\u0131nmaya kar\u015f\u0131 direnci, ta\u015flama ta\u015flar\u0131, kesici tak\u0131mlar, z\u0131mpara ka\u011f\u0131d\u0131 ve kumlama i\u015flemlerinde pop\u00fcler olarak kullan\u0131lmas\u0131n\u0131 sa\u011flar.<\/p>\n
Siyah silisyum karb\u00fcr tozu, y\u00fcksek s\u0131cakl\u0131k uygulamalar\u0131nda geli\u015fmi\u015f dayan\u0131kl\u0131l\u0131k ve performans i\u00e7in genellikle bor karb\u00fcr ile birlikte hassas boyutlar ve p\u00fcr\u00fczs\u00fcz y\u00fczeyler elde etmek i\u00e7in metal ve cam par\u00e7alar\u0131n hassas ta\u015flanmas\u0131 i\u00e7in seramiklerde kullan\u0131l\u0131r. Ayr\u0131ca, bu malzeme metal\u00fcrji, eritme ve d\u00f6k\u00fcm gibi end\u00fcstriler taraf\u0131ndan kullan\u0131lan geli\u015fmi\u015f refrakter \u00fcr\u00fcnlerin \u00fcretiminde de faydal\u0131d\u0131r.<\/p>\n
Silisyum karb\u00fcr, a\u015f\u0131r\u0131 s\u0131cakl\u0131klara ve termal \u015foka dayanabilen motor bile\u015fenleri olu\u015fturmak i\u00e7in havac\u0131l\u0131k ve uzay end\u00fcstrisi i\u00e7in ve verimlili\u011fi ve \u00f6mr\u00fc art\u0131rmak i\u00e7in \u0131s\u0131y\u0131 da\u011f\u0131tmak i\u00e7in g\u00fcne\u015f panellerinde ve yak\u0131t h\u00fccrelerinde gereklidir. Silisyum karb\u00fcr ayr\u0131ca, \u0131s\u0131 direncinin gofret i\u015fleme ekipman\u0131n\u0131 m\u00fcmk\u00fcn k\u0131ld\u0131\u011f\u0131 yar\u0131 iletken teknolojisinde de \u00f6nemli bir rol oynamaktad\u0131r.<\/p>\n
Nitr\u00fcr ba\u011fl\u0131 silisyum karb\u00fcr yak\u0131n zamanda a\u015f\u0131nma direncini belirlemek i\u00e7in \u00e7e\u015fitli toprak ko\u015fullar\u0131nda test edilmi\u015ftir. Analizler, hafif topra\u011f\u0131n optimum a\u015f\u0131nma direnci sundu\u011funu g\u00f6stermi\u015ftir; ancak a\u015f\u0131nma oranlar\u0131, bu ko\u015fullarda \u00e7al\u0131\u015fan par\u00e7alar i\u00e7in kullan\u0131lan \u00e7elik t\u00fcr\u00fcnden etkilenebilir.<\/p>","protected":false},"excerpt":{"rendered":"
SiC is an ideal material to use for electric vehicle battery inverters due to its ability to withstand high voltages while providing more effective energy conservation and longer driving distances. Though silicon carbide (SiC) occurs naturally in small amounts in meteorites, corundum deposits, and kimberlite, most SiC sold today is synthetically produced and is hard […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[64],"tags":[],"class_list":["post-100","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ceramicatijolart.com\/tr\/wp-json\/wp\/v2\/posts\/100","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ceramicatijolart.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ceramicatijolart.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/tr\/wp-json\/wp\/v2\/comments?post=100"}],"version-history":[{"count":1,"href":"https:\/\/ceramicatijolart.com\/tr\/wp-json\/wp\/v2\/posts\/100\/revisions"}],"predecessor-version":[{"id":101,"href":"https:\/\/ceramicatijolart.com\/tr\/wp-json\/wp\/v2\/posts\/100\/revisions\/101"}],"wp:attachment":[{"href":"https:\/\/ceramicatijolart.com\/tr\/wp-json\/wp\/v2\/media?parent=100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/tr\/wp-json\/wp\/v2\/categories?post=100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/tr\/wp-json\/wp\/v2\/tags?post=100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}